Dave, a 400 watt inverter supposedly can (if you believe the advertising and that 400 watts represents output????, its NOT a perfect device, it puts out less energy then supplied to its input remember, theres heat losses) at 120 volts, supply up to 400 watts which at 120 volts = 3.33 amps continuous AND WITHSTAND IT AND DELIVER IT AND NOT OVERHEAT OR OVERLOAD......... IE it can deliver 400 watts of power which is volts x amps if theres a resistive load.
BUT THATS ONLY HALF THE ANSWER It can take 12 volts DC and invert it to 120 VAC and deliver 3.33 amps at that voltage (assuming the 400 watts is its output rating) BUT ONLY SO LONG AS THE BATTERY CAN DELIVER SUCH. The battery only stores x amount of energy so once thats depleted NO TICKY NO LAUNDRY. A typical stored energy battery rating may be in Amp Hours and if you know that number and the inverter specs and losses, then you can compute for how long the inverter can deliver 400 watts of 120 VAC output power.
The 400 watts inverter rating is its power delivery measurement/capacity NOTTTTTTTTTT the Amp Hour energy storage ratinG of its internal battery.
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Today's Featured Article - Ford Part Number Trivia - by Forum Participants. "Replaced by" means the part was superseded. All of my part books date back to 1964 and New Holland have changed some part numbers. They usually put the old Ford part number on the package. I was suppressed when I looked up the part number of the auxiliary drive shaft because for some reason the part number went through a radical change and it lost its "Basic Part Number". Ford part numbers follow the following rules. Most part numbers are in three parts. The middle part is called the
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